Developer powder container



FIG. 1 is a front perspective view of a developer powder container showing my design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a side elevational view thereof, the side opposite being substantially a mirror image;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left end view thereof; and

FIG. 6 is a right end view thereof. 

The ornamental design for a developer powder container, substantially as shown and described. 